top of page

Real-time voice AI - from cricket to credit cards. Live app. Open source.

Writer: Amar HarolikarAmar Harolikar

Updated: 4 days ago




𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 - 𝐅𝐫𝐨𝐦 𝐂𝐫𝐢𝐜𝐤𝐞𝐭 𝐭𝐨 𝐂𝐫𝐞𝐝𝐢𝐭 𝐂𝐚𝐫𝐝𝐬 👉 Try it: rex.tigzig.com/rt-cricket Mobile Friendly. Open Source. [Eleven Labs]


Built with Eleven Labs Conversational AI rapid deploy voice widget.


20+ years of ODI Cricket data. 1.5M rows in PostgreSQL.


Testing realtime conversational AI - querying and DB-backed conversations:


𝐑𝐄𝐗-𝐂 is a database-connected AI assistant built with ElevenLabs for real-time voice-to-SQL and more. While the demo uses cricket data, it can supports domains like finance, retail and beyond.


𝐑𝐞𝐚𝐥𝐭𝐢𝐦𝐞 𝐎𝐩𝐭𝐢𝐨𝐧𝐬 - tested with live working prototypes

▸ OpenAI Realtime API (REX-R): ~10c/min (GPT-4 Turbo Mini) + WebRTC. Gold standard. Needs full coding; starter kits available. REX-R V2 coming soon.

▸ ElevenLabs (REX-C): ~20c/min. Easy setup, rapid deploy, full SDK/API for customization.


Other Options:

Hume AI: ~7c/min. Expression analysis, Next.js templates.

VAPI: ~5c/min + actuals. SDK/API.

Others: Google Gemini Flash 2.0, Bland AI, Synthflow AI (~10c/min).

Pricing varies by usage. Most support inbound/outbound call integrations.


𝐒𝐨𝐮𝐫𝐜𝐞 𝐂𝐨𝐝𝐞/ 𝐓𝐞𝐜𝐡

https://lnkd.in/dQ4Vn3kY with step-by-step guide + build guide video

Lightweight UI (~80kb Vanilla JavaScript, single code file). FastAPI for DB, ElevenLabs for voice, Flowise AI for LLM, Make.com for workflows.


𝐂𝐚𝐯𝐞𝐚𝐭:

Working prototype. Single agent. Data is unvalidated, sourced from Cricsheet.org's experimental CSV/ZIP


𝐕𝐢𝐝𝐞𝐨: https://lnkd.in/dudJGZ9P. See comments for time stamped table of contents.


 
 
bottom of page